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A comment on Comcast Shot Themselves in the Foot with MTA-STS. Parent comment

Re:Comcast Shot Themselves in the Foot with MTA-STS by agwa on Wednesday January 19, 2022 @02:53PM (#29999087)
Your provider is on the hook for properly configuring TLS on their mail server, but you still need to publish an MTA-STS policy saying who your provider is.

Unless your provider provides MTA-STS endpoints that you can CNAME your _mta-sts and mta-sts subdomains to. I haven't seen anyone do this yet.

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